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Grade 8 HMH Go Math - Answer Keys
Chapter 3: Proportional Relationships; Model Quiz
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3.1 Representing Proportional Relationships
Find the constant of proportionality for the table of values.
Phil is riding his bike. He rides 25 miles in 2 hours, 37.5 miles in 3 hours, and 50 miles in 4 hours. Find the constant of proportionality and write an equation to describe the situation.
3.2 Rate of Change and Slope Find the slope of each line.
3.3 Interpreting the Unit Rate as Slope
The distance Train A travels is represented by d = 70t, where d is the distance in kilometers and t is the time in hours. The distance Train B travels at various times is shown in the table. What is the unit rate of each train? Which train is going faster?
What is the relationship among proportional relationships, lines, rates of change, and slope?